dax: Introduce IOMAP_FAULT flag
Introduce a flag telling iomap operations whether they are handling a
fault or other IO. That may influence behavior wrt inode size and
similar things.
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
diff --git a/fs/iomap.c b/fs/iomap.c
index 013d1d3..51a0257 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -468,8 +468,9 @@
offset = page_offset(page);
while (length > 0) {
- ret = iomap_apply(inode, offset, length, IOMAP_WRITE,
- ops, page, iomap_page_mkwrite_actor);
+ ret = iomap_apply(inode, offset, length,
+ IOMAP_WRITE | IOMAP_FAULT, ops, page,
+ iomap_page_mkwrite_actor);
if (unlikely(ret <= 0))
goto out_unlock;
offset += ret;